Acura RL. Manual - part 666

Fig. 6: Connecting MAP Sensor 3P Connector Terminals No. 2 And No. 3 With Jumper Wire 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

6. Turn the ignition switch ON (II).  

7. Check the MAP SENSOR in the DATA LIST with the HDS. 

Is 160 kPa (47.1 in.Hg, 1,197 mmHg), or 4.49 V or more indicated?  

YES - Go to step 8. 

NO - Go to step 19. 

8. Remove the jumper wire from the MAP sensor 3P connector.  

9. Measure voltage between MAP sensor 3P connector terminals No. 1 and No. 3. 

Fig. 7: Measuring Voltage Between MAP Sensor 3P Connector Terminals No. 1 And No. 3 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there about 5 V?  

YES - Go to step 15. 

NO - Go to step 10. 

10. Turn the ignition switch OFF.  

11. Jump the SCS line with the HDS.  

12. Disconnect PCM connector C (22P).  

13. Connect MAP sensor 3P connector terminal No. 3 to body ground with a jumper wire. 

 

2007 Acura RL 

2005-08 ENGINE PERFORMANCE PGM-FI System - RL

  

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Fig. 8: Connecting MAP Sensor 3P Connector Terminal No. 3 To Body Ground With Jumper 
Wire 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

14. Check for continuity between PCM connector terminal C4 and body ground. 

Fig. 9: Checking Continuity Between PCM Connector Terminal C4 And Body Ground 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there continuity?  

YES - Go to step 26. 

NO - Repair open in the wire between the PCM (C4) and the MAP sensor, then go to step 21. 

15. Turn the ignition switch OFF.  

16. Connect PCM connector terminals C4 and C5 with a jumper wire. 

Fig. 10: Connecting PCM Connector Terminals C4 And C5 With Jumper Wire 

 

2007 Acura RL 

2005-08 ENGINE PERFORMANCE PGM-FI System - RL

  

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© 2005 Mitchell Repair Information Company, LLC. 

Courtesy of AMERICAN HONDA MOTOR CO., INC.

17. Turn the ignition switch ON (II).  

18. Check the MAP SENSOR in the DATA LIST with the HDS. 

Is 160 kPa (47.1 in.Hg, 1,197 mmHg), or 4.49 V or more indicated?  

YES - Go to step 26. 

NO - Repair open in the wire between the PCM (C5) and the MAP sensor, then go to step 21. 

19. Turn the ignition switch OFF.  

20. Replace the MAP sensor (see MAP SENSOR REPLACEMENT ).  

21. Reconnect all connectors.  

22. Turn the ignition switch ON (II).  

23. Reset the PCM with the HDS.  

24. Do the PCM idle learn procedure (see PCM IDLE LEARN PROCEDURE ).  

25. Check for Temporary DTCs or DTCs with the HDS. 

Is DTC P0108 indicated?  

YES - Check for poor connections or loose terminals at the MAP sensor and the PCM, then go to step 
1. 

NO - Troubleshooting is complete. If any other Temporary DTCs or DTCs are indicated, go to the 
indicated DTCs troubleshooting 

26. Update the PCM if it does not have the latest software (see UPDATING THE PCM ), or substitute a 

known-good PCM (see SUBSTITUTING THE PCM ).  

27. Check for Temporary DTCs or DTCs with the HDS. 

Is DTC P0108 indicated?  

YES - Check for poor connections or loose terminals at the MAP sensor and the PCM. If the PCM 
was updated, substitute a known-good PCM (see SUBSTITUTING THE PCM ), then recheck. If the 
PCM was substituted, go to step 1. 

NO - If the PCM was updated, troubleshooting is complete. If the PCM was substituted, replace the 
original PCM (see PCM REPLACEMENT ). If any other Temporary DTCs or DTCs are indicated, 
go to the indicated DTCs troubleshooting 

DTC P0111: IAT SENSOR CIRCUIT RANGE/PERFORMANCE PROBLEM 

1. Check for poor connections or loose terminals at ECT sensor 1 and the IAT sensor. 

NOTE:

Before you troubleshoot, record all freeze data and any on-board snapshot, 
and review the general troubleshooting information (see GENERAL 
TROUBLESHOOTING INFORMATION ).

 

2007 Acura RL 

2005-08 ENGINE PERFORMANCE PGM-FI System - RL

  

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© 2005 Mitchell Repair Information Company, LLC. 

Are the connections and terminals OK?

YES - Go to step 2. 

NO - Repair the connectors or terminals, then go to step 15. 

2. Remove the IAT sensor (see IAT SENSOR REPLACEMENT ).  

3. Allow the IAT sensor to cool to ambient temperature.  

4. Note the ambient temperature.  

5. Connect the IAT sensor to its 2P connector, but do not install it on the intake manifold.  

6. Turn the ignition switch ON (II).  

7. Note the value of the IAT SENSOR quickly in the DATA LIST with the HDS.  

8. Compare the value of the IAT SENSOR and the ambient temperature. 

Does the value of the IAT SENSOR differ 5.4°F (3°C) or more?  

YES - Go to step 13. 

NO - Go to step 9. 

9. Disconnect the IAT sensor from the 2P connector.  

10. Using a heat gun, blow hot air on the IAT sensor for a few seconds. Do not apply the heat longer than 

a few seconds or you will damage the sensor.  

11. Connect the IAT sensor to its 2P connector, but do not install it on the intake manifold.  

12. Check the IAT SENSOR in the DATA LIST with the HDS. 

Does the IAT SENSOR change 58°F (32°C) or more?  

YES - Intermittent failure, the system is OK at this time. Check for poor connections or loose 
terminals at the IAT sensor and the PCM 

NO - Go to step 13. 

13. Turn the ignition switch OFF.  

14. Replace the IAT sensor (see IAT SENSOR REPLACEMENT ).  

15. Turn the ignition switch ON (II).  

16. Reset the PCM with the HDS.  

17. Do the PCM idle learn procedure (see PCM IDLE LEARN PROCEDURE ).  

18. Check for Temporary DTCs or DTCs with the HDS. 

Is DTC P0111 indicated?  

YES - Check for poor connections or loose terminals at the IAT sensor and the PCM, then go to step 
1. 

NO - Troubleshooting is complete. If any other Temporary DTCs or DTCs are indicated, go to the 
indicated DTCs troubleshooting 

 

2007 Acura RL 

2005-08 ENGINE PERFORMANCE PGM-FI System - RL

  

me 

 

Friday, June 05, 2009 2:34:58 PM

Page 9 

© 2005 Mitchell Repair Information Company, LLC.